It doesn't matter your age or experience: taking full advantage of the stock market and investing with confidence are common goals for all investors. Luckily, Zacks Premium offers several different ways to do both.The research service features daily updates of the Zacks Rank and Zacks Industry Rank, full access to the Zacks #1 Rank List, Equity Research reports, and Premium stock screens, all of which will help you become a smarter, more confident investor.Zacks Premium includes access to the Zacks Style Scores as well.What are the Zacks Style Scores?The Zacks Style Scores is a unique set of guidelines that rates stocks based on three popular investing types, and were developed as complementary indicators for the Zacks Rank. This combination helps investors choose securities with the highest chances of beating the market over the next 30 days.Based on their value, growth, and momentum characteristics, each stock is assigned a rating of A, B, C, D, or F. The better the score, the better chance the stock will outperform; an A is better than a B, a B is better than a C, and so on.The Style Scores are broken down into four categories:Value ScoreFinding good stocks at good prices, and discovering which companies are trading under their true value, are what value investors like to focus on. So, the Value Style Score takes into account ratios like P/E, PEG, Price/Sales, Price/Cash Flow, and a host of other multiples to highlight the most attractive and discounted stocks.Growth ScoreGrowth investors, on the other hand, are more concerned with a company's financial strength and health, and its future outlook. The Growth Style Score examines things like projected and historic earnings, sales, and cash flow to find stocks that will experience sustainable growth over time.Momentum ScoreMomentum trading is all about taking advantage of upward or downward trends in a stock's price or earnings outlook, and these investors live by the saying "the trend is your friend." The Momentum Style Score can pinpoint good times to build a position in a stock, using factors like one-week price change and the monthly percentage change in earnings estimates.VGM ScoreWhat if you like to use all three types of investing? The VGM Score is a combination of all Style Scores, making it one of the most comprehensive indicators to use with the Zacks Rank. It rates each stock on their combined weighted styles, which helps narrow down the companies with the most attractive value, best growth forecast, and most promising momentum.How Style Scores Work with the Zacks RankThe Zacks Rank is a proprietary stock-rating model that harnesses the power of earnings estimate revisions, or changes to a company's earnings expectations, to help investors build a successful portfolio.#1 (Strong Buy) stocks have produced an unmatched +25.41% average annual return since 1988, which is more than double the S&P 500's performance over the same time frame. However, the Zacks Rank examines a ton of stocks, and there can be more than 200 companies with a Strong Buy rank, and another 600 with a #2 (Buy) rank, on any given day.But it can feel overwhelming to pick the right stocks for you and your investing goals with over 800 top-rated stocks to choose from.That's where the Style Scores come in.You want to make sure you're buying stocks with the highest likelihood of success, and to do that, you'll need to pick stocks with a Zacks Rank #1 or #2 that also have Style Scores of A or B. If you like a stock that only as a #3 (Hold) rank, it should also have Scores of A or B to guarantee as much upside potential as possible.As mentioned above, the Scores are designed to work with the Zacks Rank, so any change to a company's earnings outlook should be a deciding factor when picking which stocks to buy.Here's an example: a stock with a #4 (Sell) or #5 (Strong Sell) rating, even one with Style Scores of A and B, still has a downward-trending earnings outlook, and a bigger chance its share price will decrease too.Thus, the more stocks you own with a #1 or #2 Rank and Scores of A or B, the better.Stock to Watch: Builders FirstSource (BLDR)Builders FirstSource is the largest supplier of building materials, manufactured components and construction services to professional homebuilders, sub-contractors, remodelers and consumers. The company recently completed its merger with BMC Stock Holdings, Inc.BLDR is a #3 (Hold) on the Zacks Rank, with a VGM Score of A.Additionally, the company could be a top pick for growth investors. BLDR has a Growth Style Score of A, forecasting year-over-year earnings growth of 71.2% for the current fiscal year.Six analysts revised their earnings estimate upwards in the last 60 days for fiscal 2022. The Zacks Consensus Estimate has increased $1.85 to $17.67 per share. BLDR boasts an average earnings surprise of 71.1%.With a solid Zacks Rank and top-tier Growth and VGM Style Scores, BLDR should be on investors' short list. Zacks Names "Single Best Pick to Double" From thousands of stocks, 5 Zacks experts each have chosen their favorite to skyrocket +100% or more in months to come. From those 5, Director of Research Sheraz Mian hand-picks one to have the most explosive upside of all. It’s a little-known chemical company that’s up 65% over last year, yet still dirt cheap. With unrelenting demand, soaring 2022 earnings estimates, and $1.5 billion for repurchasing shares, retail investors could jump in at any time. This company could rival or surpass other recent Zacks’ Stocks Set to Double like Boston Beer Company which shot up +143.0% in little more than 9 months and NVIDIA which boomed +175.9% in one year.Free: See Our Top Stock and 4 Runners Up >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Builders FirstSource, Inc. (BLDR): Free Stock Analysis ReportTo read this article on Zacks.com click here.Zacks Investment Research